National Medical Report
5, design of medical scientific research, investigation design and experimental design 3 person between have why to concern?
(sought many expert opinion, think the formulation of this title has generally by accident, we reply by correct formulation)
Medical scientific research is designed, according to its applied circumstance differs, cent learns design of scientific research design, investigation and study and experimental research to design 3 sort for clinical cure model. Although apply circumstance and design principle and side key to differ, but it is the serious content in job of medical scientific research, complete independence is not between each other, in certain medical scientific research, need both or 3 person be united in wedlock cheek by jowl each other. If the research of new drug develops a process, must the investigation of ordinal course early days, human body and the chemistry in the lab and animal experiment, clinical trial such a series of whole experiment level.
6, what are investigation design and the main distinction that experimental design studies?
Experimental design and the essential distinction that investigate a design are an experiment the design can set processing factor artificially.
7, what problem should the design of questionnaire note?
Questionnaire weighs questionnaire again, it is to point to what design according to studying a purpose, convey with query means, measure a tool by what a series of issues that concern with research target comprise. One designs reasonable questionnaire, conduce to collect rich and reliable data. The design of questionnaire should note the following problem:
(1) the kind with right choice. Questionnaire is 3 kinds according to designing a type to divide: Close model, open model with drawing model.
(2) the design point of questionnaire: Investigate purpose and content clearly. Be aimed at a crowd clearly. Statistic of mature suffixal add analyses working maneuverability. Roll head due explain. Problem clarity is changed clearly, objectively, issue amount rationalize, logic is changed, standardization. Problem project wants all ready.
(3) questionnaire designs basic principle: Rationality. Run-of-mill. Logic. Make clear a gender. Blame inductivity. Facilitate arrange, analysis.
(4) questionnaire devises basic measure: Study a task certainly. Consult according to studying a task document. Build academic hypothesis. Design questionnaire. Preliminary adjustments is checked. Decide questionnaire.
(5) questionnaire content. Include questionnaire specification, problem and problem to show 3 shares. Questionnaire explains the part includes to introduce the identity of the member that investigate; Show the purpose that this second questionnaire investigates and sense; Information assures; Questionnaire investigation sponsors unit and address. The design type that issue part includes an issue (fact, behavior, mood feeling, reason reason) ; The amount of the problem and order; Problem (open mode, enclosed, half enclosed) write; The encode of the problem. The problem shows a share, it is right in questionnaire content cause different meanings or interrogative place easily to try to explain, the member that guidance investigates an object or investigate fills in correctly, in order to ensure the oneness of questionnaire.
(6) the common problem in questionnaire design. Questionnaire from first draft of conception, protocol, to final version, use wait for each link to all may appear mistake, affect the authenticity of the result. Two the mainest fields are: Decide to deviation appears when the problem. Consider study a purpose not, or forget research problem, cause material information possibly to collect not complete or cannot use, make study the result is lack fidelity. The method that avoids this one error is comprehensive to considering to have understanding, many sided considers an issue. Choose deviation of the generation when the type of the problem and form. Different research property, purpose and the questionnaire type that limits decided to choose to differ. To the research of specific aim, appropriate is used close model questionnaire; To advanced research, appropriate is used open model questionnaire.
8, does all research design all have 3 gist element? Ask illustrate
The purpose that studies as a result of medical and method are different, medical studies general component is experimental research, clinical trial and investigation and study 3 sort. They are endless on the method of specific design and operation identical, but learns what scientific research designs basic content and principle have medical service similar sex.
3 when medical scientific research designs main essential factor are processing, suffer try object and experiment effect. It is OK in research of certain observation sex that the viewpoint in the past thinks without processing, but expand as a result of the concept of processing of late, observation also had processing factor in sexual research, incident is current most viewpoint thinks design of medical scientific research has above 3 main essential factor.
Tackling an element is to show investigator basis studies what the purpose is about to bring to bear on can the element that action causes direct or indirect effect at the object, include physical element, chemical element and biology element to wait. Tackling an element can bring to bear on actively, if study in the experiment " treatment of thing of XX plant extraction fights oxidation inside the body to bandicoot " in, XX plant extracts content to tackle an element namely; If be in clinical research " of aspirin clinical fight blood to coagulate action " in, aspirin tackles an element namely. And some processing elements are objective existence, even cannot or need not intervene artificially, like investigation and study " season changes the influence of arthritis of the old people in be opposite " in, season tackles an element namely.
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